Convective heat transfer coefficients, materializing exchanges between solid wall (here typha) and its environment, influence its behavior under excitation pulse. Temperature of wall and its density of flow vary with ...Convective heat transfer coefficients, materializing exchanges between solid wall (here typha) and its environment, influence its behavior under excitation pulse. Temperature of wall and its density of flow vary with these coefficients according to its thickness (in depth). This study therefore focuses on the evaluation of convective heat transfer coefficient on front face and the optimal insulation thickness.展开更多
From resolution of two-dimensional equation of heat in dynamic frequency regime, we have plotted evolution curves of temperature according to depth of material or in lateral direction. They will allow us to evaluate t...From resolution of two-dimensional equation of heat in dynamic frequency regime, we have plotted evolution curves of temperature according to depth of material or in lateral direction. They will allow us to evaluate thermal behavior of towed material. Aim of study is to use fibers as a thermal insulating material by proposing a method for determining effective thermal insulation layer in dynamic frequency regime.展开更多
Media cooperation between Senegal and China could provide a model for the rest of Africa Since 2012,China has risen from being the 24th ranked trade partner of Senegal to the first,with a trade volume of$2.19 billion ...Media cooperation between Senegal and China could provide a model for the rest of Africa Since 2012,China has risen from being the 24th ranked trade partner of Senegal to the first,with a trade volume of$2.19 billion in 2017,according to Ministry of Commerce of China.This increased cooperation between the two countries was made possible by a strong mutual political will at the highest level.展开更多
Cooperation between Chinese and African news outlets is essential in today’shighly competitive media environment Since 2012,China has risen from being Senegal’s 24th-ranked trading partner to its second,with a trade...Cooperation between Chinese and African news outlets is essential in today’shighly competitive media environment Since 2012,China has risen from being Senegal’s 24th-ranked trading partner to its second,with a trade volume of $2.19 billion in 2017,according to China’s Ministry of Commerce.展开更多
文摘Convective heat transfer coefficients, materializing exchanges between solid wall (here typha) and its environment, influence its behavior under excitation pulse. Temperature of wall and its density of flow vary with these coefficients according to its thickness (in depth). This study therefore focuses on the evaluation of convective heat transfer coefficient on front face and the optimal insulation thickness.
文摘From resolution of two-dimensional equation of heat in dynamic frequency regime, we have plotted evolution curves of temperature according to depth of material or in lateral direction. They will allow us to evaluate thermal behavior of towed material. Aim of study is to use fibers as a thermal insulating material by proposing a method for determining effective thermal insulation layer in dynamic frequency regime.
文摘Media cooperation between Senegal and China could provide a model for the rest of Africa Since 2012,China has risen from being the 24th ranked trade partner of Senegal to the first,with a trade volume of$2.19 billion in 2017,according to Ministry of Commerce of China.This increased cooperation between the two countries was made possible by a strong mutual political will at the highest level.
文摘Cooperation between Chinese and African news outlets is essential in today’shighly competitive media environment Since 2012,China has risen from being Senegal’s 24th-ranked trading partner to its second,with a trade volume of $2.19 billion in 2017,according to China’s Ministry of Commerce.
